Driving With A Heavy Load - Ford Thunderbird Owner's Manual

Always set the parking brake fully and
make sure the gearshift is latched in P
(Park). Turn off the ignition whenever you
leave your vehicle.
Never leave your vehicle unattended
while it is running.
You can tell a console-mounted gearshift is
securely latched in P (Park) if the lever is
adjacent to the P (Park) and you cannot move it
without pushing in the thumb button.

Driving With a Heavy Load

There are limits to the amount of weight your
vehicle can carry or tow. The total weight of
your vehicle, plus the weight of the passengers
and cargo, should never be more than the Gross
Vehicle Weight Rating (GVWR). Also, the weight
that your vehicle carries over the front axle and
rear axle should never be more than the Gross
Axle Weight Rating (GAWR) for the respective
axle.
You can find your vehicle's GVWR and GAWR
on the Safety Compliance Certification Label on
the left front door lock facing or the door latch
post pillar.
The weight limits of your vehicle's tires affect
the GVWR or GAWR limitations. Usage of
replacement tires with higher weight limits than
originals does not increase GVWR or GAWR.
Usage of lower capacity replacement tires may
lower GVWR and GAWR limitations.
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